Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our pursuit of unparalleled excellence is more than a duty; it is a passion fueled by unwavering dedication to crafting the epitome of brilliance in the art and science of manufacturing mastery. Our unmatched expertise leads the way toward exceptional precision, standing as a lighthouse in the elite realm of component manufacturing. Pioneering innovation, we set the standard for designing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions seamlessly integrate across a myriad of sectors, addressing varied needs with pinpoint accuracy in numerous applications, including:
- Medical and Biotech: Offering impeccably engineered, high-precision components and groundbreaking solutions designed for tomorrow's medical devices.
- Semiconductors: Elevating chip production and associated critical equipment with essential, core components.
- New Energy: Playing a crucial role in the innovative and sustainable evolution of cutting-edge energy equipment.
- Automotive: Providing key components that fuel innovation within the automotive sector, supporting the progress of intelligent and electric vehicles.
Main Products
- Expertly crafted non-standard customized components, serving vital sectors such as medical, automation, semiconductor, and automotive industries with remarkable excellence.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are fortified by an unparalleled fleet of over 300 of the industry's most state-of-the-art machinery units. This elite ensemble ensures we offer a vast and dynamic spectrum of equipment categories, empowering us to lead the charge in innovation and adaptability across a multitude of industrial landscapes. These top-tier branded machinery units form the backbone of our precision-focused manufacturing, enabling us to expertly navigate the multifaceted and demanding machining requirements of a wide range of industries with unparalleled precision and efficiency. Our extensive capabilities ensure adherence to the highest quality standards and offer bespoke customization meticulously crafted to meet the unique needs of our distinguished clientele.
- With an illustrious 20-year legacy, we possess a wealth of manufacturing experience, seamlessly intertwined with profound technical expertise and process strengths. This ensures the delivery of superior quality and groundbreaking innovation. Our enduring expertise empowers us to consistently deliver exceptional products that not only meet but surpass expectations, setting new benchmarks in industry standards.
State-of-the-Art Production Equipment: Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Meticulous Incoming Material Inspection: Surpassing Industry Benchmarks with Precision
Each raw material entering our cutting-edge warehouse undergoes an exhaustive evaluation process, setting an unprecedented benchmark in quality assurance. This meticulous approach encompasses a thorough analysis of chemical composition and a comprehensive examination of physical characteristics. Our commitment to excellence requires every supplier to provide a Certificate of Origin along with a stamped Declaration of Conformity, ensuring that only the finest materials are chosen for our high-precision medical machining services. This rigorous authentication process guarantees material integrity and purity, consistently aligning with our elevated standards of quality and precision.
Rigorous In-Process Quality Control: Striving for Perfection
During the entire intricate machining process, each component is subjected to meticulous scrutiny to ensure its dimensions and tolerances adhere to our stringent specifications. This diligent and continuous inspection protocol is designed to proactively intercept potential defects, preventing any non-conforming parts from proceeding. This vigilant approach substantially reduces the risk of producing large quantities of substandard goods, thereby ensuring excellence is consistently maintained at each production stage.
Proactive and All-Encompassing First Article Inspection (FAI): A Framework for Unmatched Excellence
Our First Article Inspection (FAI) is the bedrock of our strategy, expertly identifying and resolving potential production challenges right from the beginning. This forward-thinking approach prevents issues from escalating during mass production. This precise and comprehensive FAI process is vital for minimizing quality risks, ensuring our products unfailingly reach the highest standards, and reflecting our unwavering commitment to excellence throughout the production cycle.
Thorough and Detailed Final Inspection: The Ultimate Quality Guardian
Before any product leaves our facility, it undergoes a meticulous and comprehensive final inspection. This rigorous evaluation covers dimensions, visual appearance, and performance, in addition to any customer-specific requirements. This extensive inspection is a testament to our relentless pursuit of quality, ensuring that each part dispatched meets our strict standards, delivering the utmost quality products to our esteemed customers.
Packaging & Shipping
Company Profile
With a rich legacy rooted in its illustrious inception in 2009, and a visionary foundation laid as early as 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has passionately dedicated itself to mastering the intricate art and dynamic science of high-precision component machining. For two decades, we have embraced the forefront of innovation, emerging as trailblazers and industry vanguards in the realm of precision engineering. Through relentless technical research and development, we have firmly established ourselves as pioneers in the industry, continually setting new benchmarks of excellence that inspire and lead. We have accumulated an unparalleled wealth of technical expertise, strategically positioning ourselves as undisputed market leaders with a sterling reputation for manufacturing excellence. Our unmatched expertise in delivering precision medical machining services consistently achieves the highest standards of exacting tolerances and flawless surface finishes, making us the preferred partner in the medical sector. Here, our unwavering precision and reliability are not just recognized but highly valued, cementing our status as trusted leaders.
With four strategically located production bases, nestled in the dynamic hubs of Shenzhen and Guiyang, driven by an ambitious and dedicated workforce of over 400 highly skilled employees, Donghui has meticulously crafted a robust and vertically integrated industry chain. This seamlessly weaves together research and development, production, and delivery processes, ensuring we consistently meet and surpass the diverse needs of our clientele with remarkable efficiency and unparalleled quality. Our cutting-edge facilities are expertly equipped to undertake the most intricate and demanding machining tasks, solidifying our prestigious reputation as leaders in excellence and innovation.
Workshop Display
Certifications

FAQ
1. What is CNC machining?
CNC (Computer Numerical Control) machining is a manufacturing process where pre-programmed computer software controls the movement of machinery and tools. It's used for a wide range of materials, including metal, plastic, and wood.
2. What materials can be used in CNC machining?
CNC machines can handle a variety of materials such as:
- Metals (aluminum, steel, titanium, brass, copper)
- Plastics (ABS, POM, nylon, acrylic)
- Wood and composite materials
- Ceramics and more.
3. What is the difference between CNC milling and CNC turning?
- CNC Milling: Involves rotating the cutting tool and moving it along multiple axes to remove material from a workpiece.
- CNC Turning: Involves rotating the workpiece and using a stationary cutting tool to remove material, mainly for cylindrical parts.
4. How do I choose the right CNC machining service?
Factors to consider include:
- Material requirements
- Tolerance and precision
- Production volume
- Lead time
- Cost-effectiveness
5. What is the typical lead time for CNC machining?
Lead times depend on the complexity of the part, the material, the required finish, and the production volume. Typically, CNC machining can take anywhere from a few days to a couple of weeks for a prototype or small batch, but larger orders may take longer. Normally 7 days for prototyping and 20 days for mass production shipment.
6. What is the maximum size of a part that can be CNC machined?
The size limitations depend on the specific CNC machine being used. Large-scale machines can accommodate parts up to several meters in length, while smaller machines are typically limited to parts around 1000mm in length or less.
7. What is the accuracy and tolerance of CNC machining?
CNC machining offers high precision, with tolerances typically ranging from ±0.01mm to ±0.1mm. However, the exact tolerance will depend on the machine and the material used.
8. How much does CNC machining cost?
CNC machining costs vary based on factors such as:
- Material choice
- Part complexity
- Machine time
- Labor costs
- Quantity (prototypes vs. mass production)
9. What types of finishes can be applied to CNC machined parts?
Common finishes include:
- Anodizing
- Powder coating
- Polishing
- Painting
- Bead blasting
- Electroplating
10. Can CNC machining be used for prototyping?
Yes, CNC machining is widely used for prototyping because it allows for the quick production of precise parts. It's ideal for low-to-medium volume production runs and allows engineers to test designs and make adjustments before mass production.
11. What are some common applications of CNC machining?
CNC machining is used across various industries, including:
- Aerospace and aviation
- Automotive
- Medical devices
- Consumer electronics
- Industrial machinery
12. What are the common challenges in CNC machining?
- Tool wear: As tools wear out, they affect the quality of the parts being machined.
- Material properties: Different materials behave differently during machining, requiring adjustments to the process.
- Programming complexity: Complex designs may need advanced programming skills and specialized machines.
13. How can I ensure the quality of CNC machined parts?
Quality can be ensured through:
- First Article Inspections (FAI)
- In-process inspections
- Final inspections
- Use of quality control tools like CMM (Coordinate Measuring Machine)